Water-cooled central air-conditioning contains four parts,
compressor, evaporator, condenser, throttle device, refrigerant in
circulation in the above four parts, refrigerant compressor out
(refrigerant), high temperature and high pressure gas flows through
the condenser and cooling step-down, condenser heat to cooling
towers to discharge through the cooling water system, cold media
continue to flow through the throttle device, into the low
temperature low pressure liquid, flows through the evaporator,
heat, then through compression. In the evaporator of the two ends
of frozen water cycle system, refrigerant in the absorption of heat
will chilled water temperature is reduced, the low temperature
water flow to the client, repass fan coil heat exchanger, the cold
wind blow out.